148890890 has 8 divisors (see below), whose sum is σ = 268003620. Its totient is φ = 59556352.

The previous prime is 148890881. The next prime is 148890919. The reversal of 148890890 is 98098841.

It can be written as a sum of positive squares in 2 ways, for example, as 141443449 + 7447441 = 11893^2 + 2729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7444535 + ... + 7444554.

Almost surely, 2^148890890 is an apocalyptic number.

148890890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

148890890 is a deficient number, since it is larger than the sum of its proper divisors (119112730).

148890890 is a wasteful number, since it uses less digits than its factorization.

148890890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14889096.

The product of its (nonzero) digits is 165888, while the sum is 47.

The square root of 148890890 is about 12202.0854774911. The cubic root of 148890890 is about 530.0164822215.

The spelling of 148890890 in words is "one hundred forty-eight million, eight hundred ninety thousand, eight hundred ninety".